Apparatus to allow biopsy sample visualization during tissue removal

ABSTRACT

A biopsy device includes a body, a needle, a cutter, a tissue sample holder, and a gate assembly. The needle extends distally from the body. The cutter is longitudinally translatable relative to the needle and defines a cutter lumen. The tissue sample holder is coupled proximally relative to the body. The cutter lumen of the cutter defines at least a portion of a fluid conduit extending between the cutter and the tissue sample holder. The gate assembly is configured to selectively arrest movement of a tissue sample holder within the fluid conduit between the cutter and the tissue sample holder.

PRIORITY

This present application claims priority to U.S. Provisional PatentApplication No. 62/429,379, entitled “Apparatus to Allow Biopsy SampleVisualization During Tissue Removal,” filed on Dec. 2, 2016, thedisclosure of which is hereby incorporated by reference herein in itsentirety.

BACKGROUND

A biopsy is the removal of a tissue sample from a patient to enableexamination of the tissue for signs of cancer or other disorders. Tissuesamples may be obtained in a variety of ways using various medicalprocedures involving a variety of the sample collection devices. Forexample, biopsies may be open procedures (surgically removing tissueafter creating an incision) or percutaneous procedures (e.g. by fineneedle aspiration, core needle biopsy, or vacuum assisted biopsy). Afterthe tissue sample is collected, the tissue sample may be analyzed at alab (e.g. a pathology lab, biomedical lab, etc.) that is set up toperform the appropriate tests (such as histological).

Merely exemplary biopsy devices and biopsy system components aredisclosed in U.S. Pat. No. 5,526,822, entitled “Method and Apparatus forAutomated Biopsy and Collection of Soft Tissue,” issued Jun. 18, 1996;U.S. Pat. No. 5,928,164, entitled “Apparatus for Automated Biopsy andCollection of Soft Tissue,” issued Jul. 27, 1999; U.S. Pat. No.6,086,544, entitled “Control Apparatus for an Automated Surgical BiopsyDevice,” issued Jul. 11, 2000; U.S. Pat. No. 6,162,187, entitled “FluidCollection Apparatus for a Surgical Device,” issued Dec. 19, 2000; U.S.Pat. No. 6,432,065, entitled “Method for Using a Surgical Biopsy Systemwith Remote Control for Selecting an Operational Mode,” issued Aug. 13,2002; U.S. Pat. No. 6,752,768, entitled “Surgical Biopsy System withRemote Control for Selecting an Operational Mode,” issued Jun. 22, 2004;U.S. Pat. No. 7,442,171, entitled “Remote Thumbwheel for a SurgicalBiopsy Device,” issued Oct. 8, 2008; U.S. Pat. No. 7,854,706, entitled“Clutch and Valving System for Tetherless Biopsy Device,” issued Dec. 1,2010; U.S. Pat. No. 7,914,464, entitled “Surgical Biopsy System withRemote Control for Selecting an Operational Mode,” issued Mar. 29, 2011;U.S. Pat. No. 7,938,786, entitled “Vacuum Timing Algorithm for BiopsyDevice,” issued May 10, 2011; U.S. Pat. No. 8,118,755, entitled “BiopsySample Storage,” issued Feb. 21, 2012; U.S. Pat. No. 8,206,316, entitled“Tetherless Biopsy Device with Reusable Portion,” issued Jun. 26, 2012;U.S. Pat. No. 8,241,226, entitled “Biopsy Device with Rotatable TissueSample Holder,” issued Aug. 14, 2012; U.S. Pat. No. 8,764,680, entitled“Handheld Biopsy Device with Needle Firing,” issued Jul. 1, 2014; U.S.Pat. No. 8,801,742, entitled “Needle Assembly and Blade Assembly forBiopsy Device,” issued Aug. 12, 2014; U.S. Pat. No. 8,938,285, entitled“Access Chamber and Markers for Biopsy Device,” issued Jan. 20, 2015;U.S. Pat. No. 8,858,465, entitled “Biopsy Device with Motorized NeedleFiring,” issued Oct. 14, 2014; U.S. Pat. No. 9,326,755, entitled “BiopsyDevice Tissue Sample Holder with Bulk Chamber and Pathology Chamber,”issued May 3, 2016; and U.S. Pat. No. 9,345,457, entitled “Presentationof Biopsy Sample by Biopsy Device,” issued May 24, 2016. The disclosureof each of the above-cited U.S. Patents is incorporated by referenceherein.

Additional exemplary biopsy devices and biopsy system components aredisclosed in U.S. Pat. Pub. No. 2006/0074345, entitled “Biopsy Apparatusand Method,” published Apr. 6, 2006, now abandoned; U.S. Pat. Pub. No.2009/0131821, entitled “Graphical User Interface For Biopsy SystemControl Module,” published May 21, 2009, now abandoned; U.S. Pat. Pub.No. 2010/0160819, entitled “Biopsy Device with Central Thumbwheel,”published Jun. 24, 2010; and U.S. Pat. Pub. No. 2013/0324882, entitled“Control for Biopsy Device,” published Dec. 5, 2013, now abandoned. Thedisclosure of each of the above-cited U.S. Patent ApplicationPublications, U.S. Non-Provisional patent applications, and U.S.Provisional Patent Applications is incorporated by reference herein.

While several systems and methods have been made and used for obtainingand processing a biopsy sample, it is believed that no one prior to theinventor has made or used the invention described in the appendedclaims.

BRIEF DESCRIPTION OF THE DRAWINGS

While the specification concludes with claims which particularly pointout and distinctly claim this technology, it is believed this technologywill be better understood from the following description of certainexamples taken in conjunction with the accompanying drawings, in whichlike reference numerals identify the same elements and in which:

FIG. 1 depicts perspective view of an exemplary biopsy device;

FIG. 2 depicts a perspective of a tissue sample acquisition assembly ofthe biopsy device of FIG. 1;

FIG. 3 depicts an exploded perspective view of a needle of the tissueacquisition assembly of FIG. 2;

FIG. 4 depicts a side cross-sectional view of the needle of FIG. 3, withthe cross-section taken along line 4-4 of FIG. 2;

FIG. 5 depicts a perspective view of a cutter actuation assembly of thesample acquisition assembly of FIG. 2;

FIG. 6 depicts an exploded perspective view of the cutter actuationassembly of FIG. 5;

FIG. 7 depicts a perspective view of a gate assembly of the sampleacquisition assembly of FIG. 2;

FIG. 8 depicts an exploded perspective view of the gate assembly of FIG.7;

FIG. 9 depicts a perspective cross-sectional view of a sample inspectionmember of the gate assembly of FIG. 7, the cross-section taken alongline 9-9 of FIG. 8;

FIG. 10 depicts a perspective cross-sectional view of a cutter drivemember of the cutter auction assembly of FIG. 5, the cross-section takenalong line 10-10 of FIG. 8;

FIG. 11 depicts a cross-sectional view of the gate assembly of FIG. 7,the cross-section taken along line 11-11 of FIG. 7, with the gateassembly in a closed position;

FIG. 12 depicts another side cross-sectional view of the needle of FIG.3, the cross-section taken along line 4-4 of FIG. 2, with the cutter ina distal position and a lateral aperture in a closed configuration;

FIG. 13 depicts another perspective view of the sample acquisitionassembly of FIG. 2, with the cutter actuation assembly in a distalposition and the gate assembly in the closed position;

FIG. 14 depicts still another side cross-sectional view of the needle ofFIG. 3, the cross-section taken along line 4-4 of FIG. 2, with thecutter in an intermediate position;

FIG. 15 depicts still another perspective view of the sample acquisitionassembly of FIG. 2, with the cutter actuation assembly in anintermediate position;

FIG. 16 depicts yet another side cross-sectional view of the needle ofFIG. 3, the cross-section taken along line 4-4 of FIG. 2, with thecutter in a proximal position and the lateral aperture in an openconfiguration;

FIG. 17 depicts still another perspective view of the sample acquisitionassembly of FIG. 2, with the cutter actuation assembly in a proximalposition and the gate assembly in an open position;

FIG. 18 depicts another side cross-sectional view of the gate assemblyof FIG. 7, the cross-section taken along line 11-11 of FIG. 7, with thegate assembly in the open position;

FIG. 19 depicts a perspective view of an exemplary alternative biopsydevice;

FIG. 20 depicts a perspective cutaway view of a probe of the biopsydevice of FIG. 19;

FIG. 21 depicts a perspective exploded view of a cutter actuationassembly of the probe of FIG. 20;

FIG. 22 depicts a perspective view of a translation member of the cutteractuation assembly of FIG. 21;

FIG. 23 depicts a perspective view of a drive gear of the cutteractuation assembly of FIG. 21;

FIG. 24 depicts side elevational view of the cutter actuation assemblyof FIG. 21;

FIG. 25 depicts a partial perspective view of the cutter actuationassembly of FIG. 21;

FIG. 26A depicts a perspective view of the cutter actuation assembly ofFIG. 21, with the cutter actuation assembly in a proximal position;

FIG. 26B depicts another perspective view of the cutter actuationassembly of FIG. 21, with the cutter actuation assembly in a distalposition;

FIG. 27A depicts another perspective cutaway view of the probe of FIG.20, with the cutter actuation assembly in the proximal position; and

FIG. 27B depicts still another perspective cutaway view of the probe ofFIG. 20, with the cutter actuation assembly in the distal position.

The drawings are not intended to be limiting in any way, and it iscontemplated that various embodiments of the technology may be carriedout in a variety of other ways, including those not necessarily depictedin the drawings. The accompanying drawings incorporated in and forming apart of the specification illustrate several aspects of the presenttechnology, and together with the description serve to explain theprinciples of the technology; it being understood, however, that thistechnology is not limited to the precise arrangements shown.

DETAILED DESCRIPTION

The following description of certain examples of the technology shouldnot be used to limit its scope. Other examples, features, aspects,embodiments, and advantages of the technology will become apparent tothose skilled in the art from the following description, which is by wayof illustration, one of the best modes contemplated for carrying out thetechnology. As will be realized, the technology described herein iscapable of other different and obvious aspects, all without departingfrom the technology. Accordingly, the drawings and descriptions shouldbe regarded as illustrative in nature and not restrictive.

I. Exemplary Biopsy Device

FIG. 1 shows an exemplary a biopsy device (10) that may be used in abreast biopsy system including, in some examples, a vacuum controlmodule (not shown). Biopsy device (10) of the present example comprisesa probe (100) and a holster (200). A needle (110) extends distally fromprobe (100), and is inserted into a patient's tissue to obtain tissuesamples. These tissue samples are deposited in a tissue sample holder(300) at the proximal end of probe (100), as will also be described ingreater detail below.

Holster (200) of the present example is selectively attachable to probe(100) to provide actuation of various components within probe (100). Inthe present configuration, holster (200) is a reusable component, whileprobe (100) and tissue sample holder (300) are disposable. It should beunderstood that the use of the term “holster” herein should not be readas requiring any portion of probe (100) to be inserted into any portionof holster (200). For instance, in the present example, holster (200)includes a set of prongs (not shown) or other retention features thatare received by probe (100) to releasably secure probe (100) to holster(200). Probe (100) also includes a set of resilient tabs (not shown) orother suitable release features that may be pressed inwardly todisengage the prongs, such that a user may simultaneously depress bothof the tabs then pull probe (100) rearwardly and away from holster (200)to decouple probe (100) from holster (200). Of course, a variety ofother types of structures, components, features, etc. (e.g., bayonetmounts, latches, clamps, clips, snap fittings, etc.) may be used toprovide removable coupling of probe (100) and holster (200).Furthermore, in some biopsy devices (10), probe (100) and holster (200)may be of unitary or integral construction, such that the two componentscannot be separated. By way of example only, in versions where probe(100) and holster (200) are provided as separable components, probe(100) may be provided as a disposable component, while holster (200) maybe provided as a reusable component. Still other suitable structural andfunctional relationships between probe (100) and holster (200) will beapparent to those of ordinary skill in the art in view of the teachingsherein.

Some variations of biopsy device (10) may include one or more sensors(not shown), in probe (100) and/or in holster (200), that is/areconfigured to detect when probe (100) is coupled with holster (200).Such sensors or other features may further be configured to permit onlycertain types of probes (100) and holsters (200) to be coupled together.In addition, or in the alternative, such sensors may be configured todisable one or more functions of probes (100) and/or holsters (200)until a suitable probe (100) and holster (200) are coupled together. Inone merely illustrative example, probe (100) includes a magnet (notshown) that is detected by a Hall Effect sensor (not shown) or someother type of sensor in holster (200) when probe (100) is coupled withholster (200). As yet another merely illustrative example, coupling ofprobe (100) with holster (200) may be detected using physical contactbetween conductive surfaces or electrodes, using RFID technology, and/orin numerous other ways as will be apparent to those of ordinary skill inthe art in view of the teachings herein. Of course, such sensors andfeatures may be varied or omitted as desired.

Biopsy device (10) of the present example is configured for handhelduse, and be used under ultrasonic guidance. Of course, biopsy device(10) may instead be used under stereotactic guidance, MRI guidance, PEMguidance, BSGI guidance, or otherwise. It should also be understood thatbiopsy device (10) may be sized and configured such that biopsy device(10) may be operated by a single hand of a user. In particular, a usermay grasp biopsy device (10), insert needle (110) into a patient'sbreast, and collect one or a plurality of tissue samples from within thepatient's breast, all with just using a single hand. Alternatively, auser may grasp biopsy device (10) with more than one hand and/or withany desired assistance. In still other examples, biopsy device (10) canbe configured to be secured to a table or other fixture without handheldoperation.

In some settings, whether biopsy device (10) is handheld or mounted to afixture, the user may capture a plurality of tissue samples with just asingle insertion of needle (110) into the patient's breast. Such tissuesamples may be deposited in tissue sample holder (300), and laterretrieved from tissue sample holder (300) for analysis. While examplesdescribed herein often refer to the acquisition of biopsy samples from apatient's breast, it should be understood that biopsy device (10) may beused in a variety of other procedures for a variety of other purposesand in a variety of other parts of a patient's anatomy (e.g., prostate,thyroid, etc.). Various exemplary components, features, configurations,and operabilities of biopsy device (10) will be described in greaterdetail below; while other suitable components, features, configurations,and operabilities will be apparent to those of ordinary skill in the artin view of the teachings herein.

Holster (200) of the present example includes an outer housing (210)that is configured to at least partially encompass the internalcomponents of holster (200). Although not shown, it should be understoodthat holster (200) of the present example includes one or more motorsand/or other actuators that are configured to drive various componentsof probe. To communicate power or movement to probe (100), holster (200)can include one or more gears. For instance, in some examples, one ormore gears at least partially extend through an opening in outer housing(210). The opening in outer housing (210) can be configured to alignwith a corresponding opening associated with probe (100) to therebypermit the one or more gears of holster (200) to mesh with one or morecorresponding gears of probe (100).

Although not shown, it should be understood that holster (200) may alsoinclude various cables that are configured to couple holster (200) to acontrol module or another control feature. Suitable cables may includeelectrical cables, rotary drive cables, pneumatic cables, or somecombination thereof. Accordingly, it should be understood that in someexamples, internal components within holster (200) may be powered byelectrical power (electrical cables), rotary power (rotary drive cable),and/or pneumatic power (pneumatic cables). Alternatively, in someexamples the cables are omitted entirely and holster (200) can bebattery powered with motors and vacuum pumps being entirely containedwithin holster (200).

As described above, holster (200) of the present example is configuredas a reusable portion, while probe (100) is configured as a disposableportion. In some contexts, it may be desirable to maintain sterility ofreusable components during a biopsy procedure. Accordingly, in someinstances it may be desirable to use holster (200) in connection withcertain features to maintain the sterility of holster (200), while alsomaintaining functionality of holster (200). Merely exemplary featuresand methods for maintaining the sterility of holster (200) are shown anddescribed in U.S. Pat. Ser. No. [Atty. Docket No. LEI20010-SO-US.0642284], entitled “Functional Cover for Biopsy Device,”filed on an even date herewith, the disclosure of which is incorporatedby reference herein.

Probe (100) of the present example includes a needle (110) extendingdistally from probe (100) that is inserted into a patient's tissue toobtain tissue samples. These tissue samples are deposited in a tissuesample holder (300) at the proximal end of probe (100). In someexamples, a vacuum control module (not shown) is coupled with probe(100) via a valve assembly (not shown) and tubes (not shown), which isoperable to selectively provide vacuum, saline, atmospheric air, andventing to probe (100). By way of example only, the internal componentsof the valve assembly of the present example may be configured andarranged as described in U.S. Pat. Pub. No. 2013/0218047, entitled“Biopsy Device Valve Assembly,” published Aug. 22, 2013, the disclosureof which is incorporated by reference herein.

As described above with respect to holster (200), probe (100) isselectively couplable to holster (200) so that holster (200) may providepower or otherwise actuate probe (100). In particular, probe (100)includes an outer housing (102) that includes a holster receivingportion (104) that is configured to receive holster (200). In someexamples, holster receiving portion (104) includes an opening that isconfigured to align with a corresponding opening of holster (200). Oneor more drive gears (540) are exposed through the opening in outerhousing (102), and are operable to drive a cutter actuation mechanism inprobe (100). The one or more drive gears (540) of probe (100) mesh withthe one or more gears of holster (200) when probe (100) and holster(200) are coupled together. Accordingly, holster (200) may providemechanical power or otherwise drive movement of components within probe(100) via gears of probe (100) and holster (200).

Outer housing (102) of probe (100) additionally defines a sample window(140) disposed distally on the exterior of outer housing (102) adjacentto the distal end of outer housing (102). In some examples, it may bedesirable for an operator to view samples as they are collected byneedle (110). For instance, and as will be described in greater detailbelow, in the present example tissue sample holder (300) is configuredto collect tissue sample in a bulk configuration. While thisconfiguration of tissue sample collection may enhance tissue samplecapacity, the ability to visualize individual tissue samples may bereduced due to multiple tissue samples being comingled within a commonspace. Accordingly, sample window (140) is configured to permit anoperator to visualize individual tissue samples as they are collectedvia needle (110). As will be described in greater detail below, samplewindow (140) permits an operator to visually inspect a severed tissuesample prior to transportation of the severed tissue sample to tissuesample holder (300).

Needle (110) of the present example comprises a cannula (113) having apiercing tip (112), and a lateral aperture (114) located proximal to tip(112). Tissue piercing tip (112) is configured to pierce and penetratetissue, without requiring a high amount of force, and without requiringan opening to be pre-formed in the tissue prior to insertion of tip(112). Alternatively, tip (112) may be blunt (e.g., rounded, flat, etc.)if desired. By way of example only, tip (112) may be configured inaccordance with any of the teachings in U.S. Pat. No. 8,801,742,entitled “Needle Assembly and Blade Assembly for Biopsy Device,” filedJun. 1, 2011, the disclosure of which is incorporated by referenceherein. As another merely illustrative example, tip (112) may beconfigured in accordance with at least some of the teachings in U.S.Pat. Pub. No. 2013/0144188, entitled “Biopsy Device with Slide-InProbe,” published Jun. 6, 2013, will issue on Nov. 8, 2016 as U.S. Pat.No. 9,486,186, the disclosure of which is incorporated by referenceherein. Other suitable configurations that may be used for tip (112)will be apparent to those of ordinary skill in the art in view of theteachings herein.

Lateral aperture (114) is sized to receive prolapsed tissue duringoperation of device (10). A hollow tubular cutter (130) having a sharpdistal edge (132) is located within needle (110). Cutter (130) isoperable to rotate and translate relative to needle (110) and pastlateral aperture (114) to sever a tissue sample from tissue protrudingthrough lateral aperture (114). For instance, cutter (130) may be movedfrom an extended position to a retracted position, thereby “opening”lateral aperture (114) to allow tissue to protrude therethrough; thenfrom the retracted position back to the extended position to sever theprotruding tissue.

In some examples it may be desirable to rotate needle (110) to orientlateral aperture (114) at a plurality of desired angular positions aboutthe longitudinal axis of needle (110). In the present example, needle(110) can be rotated by a motor disposed in probe (100) or holster(200). In other examples, needle (110) is manually rotatable by athumbwheel on probe (100) or needle hub directly overmolded onto needle(110). Regardless, it should also be understood that, as with othercomponents described herein, needle (110) may be varied, modified,substituted, or supplemented in a variety of ways; and that needle (110)may have a variety of alternative features, components, configurations,and functionalities. For instance, needle (110) may be constructed inaccordance with the teachings of U.S. Pat. No. 9,345,457, issued May 24,2016, the disclosure of which is incorporated by reference herein,and/or in accordance with the teachings of any other reference citedherein.

Tissue sample holder (300) is selectively coupleable to the proximal endof probe (100). In the present example, tissue sample holder (300) isconfigured to receive a plurality of tissue samples in a variety oftissues sample collection configurations. By way of example only,suitable tissue collection configurations may include bulk tissue samplecollection configurations and/or individual sample collectionconfigurations. In a bulk sample collection configuration, acquiredtissue samples are comingled within one or more tissue sample collectionchambers. By contrast, in an individual sample collection configuration,tissue samples are segregated in individual sample compartments. Whiletissue sample holder (300) in some examples may be configured forexclusively bulk sample collection or individual sample collection, itshould be understood that in other examples both tissue samplecollection configurations can be combined in a single tissue sampleholder (300). Merely exemplary configurations for tissue sample holdershown and described in International Pat. App. No. PCT/US2016/059411,entitled “Tissue Sample Holder with Bulk Tissue Collection Feature,”filed on Oct. 28, 2016; and U.S. Pat. Ser. No. [Atty. Docket No. LEI20007-SO-US.0642286], entitled “Multi-Chamber Tissue Sample Cup forBiopsy Device,” filed on an even date herewith, the disclosures of whichare incorporated by reference herein.

II. Exemplary Tissue Acquisition Assembly

As best seen in FIG. 2, probe (100) further includes a tissueacquisition assembly (400). As can be seen, tissue acquisition assembly(400) comprises needle (110), cutter (130), a cutter actuation assembly(500), and a gate assembly (600). As described above, needle (110)comprises a cannula (113) and a tissue piercing tip (112). Cannula (113)of the present example comprises a generally circular cross-sectionalshape, defining a lumen therein such that cannula (113) is configured toreceive cutter (130) coaxially within the lumen of cannula (113). Tissuepiercing tip (112) is secured to the distal end of cannula (113). In thepresent example, tissue piercing tip (112) is a solid homogeneous pieceof material that is ground to form a plurality of facets that togetherdefine the sharp point of tissue piercing tip (112). Although tissuepiercing tip (112) of the present example is shown as a single part, itshould be understood that in other examples tissue piercing tip (112)comprises a multiple part assembly. Merely exemplary alternativeconfigurations for tissue piercing tip (112) are shown and described inU.S. Pat. No. 8,801,742, entitled “Needle Assembly and Blade Assemblyfor Biopsy Device,” issued on Aug. 12, 2014, the disclosure of which isincorporated by reference herein.

As can be best seen in FIGS. 3 and 4, needle (110) additionally includesa manifold (116) secured to the distal end of cannula (113). Manifold(116) is generally configured to direct fluid into the lumen of cannula(113). Manifold (116) includes a port (118) and a lumen (120)communicating with port (118). Although not shown, it should beunderstood that a tube or valve assembly can be connected to port (118)to communicate fluids into lumen (120). Lumen (120) extends throughmanifold (116) and into communication with the lumen of cutter (130).Accordingly, it should be understood that fluids may be directed to port(118) and into lumen (120) to communicate fluids to the lumen of cannula(113). In use, any suitable fluid may be communicated through manifold(116). For instance, in some examples manifold (116) is used to provideatmospheric air to the lumen of cannula (113). In such examples,atmospheric air may be desirable to enhance transportation of tissuesamples through cutter (130) by providing a pressure differential oneither side of the tissue sample. In addition, in some examples manifold(116) is used to provide vacuum and/or saline to assist with a biopsyprocedure.

Cutter actuation assembly (500) is shown in greater detail in FIGS. 5and 6. As can be seen, cutter actuation assembly comprises a cutterdrive member (502), a translation member (530), a drive gear (540) and atransfer tube (560). Cutter drive member (502) comprises a gate portion(504) and a drive portion (520). As will be described in greater detailbelow, at least a portion of gate portion (504) is generally configuredto couple to at least a portion of gate assembly (600) to communicaterotational and translational motion of cutter drive member (502) to gateassembly (600). As will also be described in greater detail below, atleast a portion of gate assembly (600) is coupled to cutter (130) tocommunicate rotational and translational motion of gate assembly (600)to cutter (130). Thus, it should be understood that rotation andtranslation of cutter drive member (502) results in correspondingrotation and translation of cutter (130) via the coupling between atleast a portion of gate portion (504) and at least a portion of gateassembly (600).

Drive portion (520) of cutter drive member (502) comprises a threadedportion (522) and a longitudinal channel (528) extending axially alongcutter drive member (502) through threaded portion (522). Threadedportion (522) is disposed between a distal no-pitch zone (524) and aproximal no-pitch zone (526). As will be described in greater detailbelow, threaded portion (522) is generally configured to engage withtranslation member (530) to provide translation of cutter drive member(502). Similarly, longitudinal channel (528) is configured to engagedrive gear (540) to provide rotation of cutter drive member (502). Aswill also be described in greater detail below, each no-pitch zone (524,526), is configured to permit rotation of cutter drive member (502)without translation of cutter drive member (502).

As best seen in FIG. 6, translation member (530) comprises a cylindricalbody (532).

Cylindrical body (532) is generally hollow, defining a bore (534)extending axially there through. The interior of bore (534) includes aplurality of threads (536) that are configured to engage threadedportion (522) of cutter drive member (502). As will be described ingreater detail below, engagement between threads (536) of translationmember (530) and threaded portion (522) of cutter drive member (502) isgenerally configured to cause translation of cutter drive member (502)in response to rotation of cutter drive member (502).

Translation member (530) further comprises a key feature (538) extendingdownwardly from body (532). Key feature (538) is configured to bereceived within at least a portion of outer housing (102) of probe(100). This configuration secures translation member (530) axially androtatably relative to probe (100). Thus, it should be understood thatkey feature (538) acts as a mechanical ground for translation member(530). As will be described in greater detail below, this configurationpermits translation member (530) to drive translation of cutter drivemember (502) relative to probe (100) upon rotation of cutter drivemember (502).

Drive gear (540) comprises a cylindrical body (502) that is configuredto fit around the outer diameter of cutter drive member (502).Cylindrical body (542) of drive gear (540) is generally hollow, defininga bore (544) extending axially there through. The interior of bore (544)includes a pair of keys (546) extending radially inwardly toward thecenter of bore (544). As will be described in greater detail below, eachkey (546) is configured to engage longitudinal channel (528) of cutterdrive member (502). Although not shown, it should be understood thatcutter drive member (502) includes another substantially identicallongitudinal channel (528) on the opposite side of cutter drive member(502) such that both keys (546) are received within a correspondinglongitudinal channel (528). As will be understood, this configurationpermits drive gear (540) to rotate cutter drive member (502) in responseto rotation of drive gear (540).

Drive gear (540) further comprises a plurality of teeth (548) extendingoutwardly from the exterior of cylindrical body (542). Teeth (548) areconfigured to engage corresponding teeth (not shown) of a gear (notshown) within holster (200). Although not shown, it should be understoodthat at least a portion of drive gear (540) extends through an openingin outer housing (102) of probe (100) to permit engagement between drivegear (540) and the corresponding gear of holster (200). As will bedescribed in greater detail below, rotation of drive gear (540) via thegear of holster (200) is generally configured to cause rotation ofcutter drive member (502). As will be understood, this rotation ofcutter drive member (502) additionally results in simultaneoustranslation of cutter drive member (502) via translation member (530).

Transfer tube (560) extends from cutter drive member (502) to tissuesample holder (300) to provide communication of tissue samples fromcutter drive member (502) to tissue sample holder (300). A lumen (562)is defined within transfer tube (560). A corresponding lumen (503) isextends through cutter drive member (502). Accordingly, it should beunderstood that lumen (562) of transfer tube (560) and lumen (503) ofcutter drive member (502) together define a continuous path for tissuesamples to flow through cutter drive member (502) and transfer tube(560) to tissue sample holder (300). As will be described in greaterdetail below, tissue samples generally flow through cutter (130) intogate assembly (600) and then pass through cutter drive member (502) andtransfer tube (560) before finally being deposited within tissue sampleholder (300). Thus, it should be understood that both lumen (562) oftransfer tube (560) and lumen (503) of cutter drive member (502) are influid communication with the interior of cutter (130).

Gate assembly (600) is shown in greater detail in FIGS. 7-11. As will bedescribed in greater detail below, gate assembly (600) is generallyconfigured to temporarily cease progression of tissue samples for visualinspection through sample window (140) of probe (100). Gate assembly(600) comprises a sample inspection member (602), a coupling collar(620), and a gate seal (630) disposed between sample inspection member(602) and cutter drive member (502) of cutter actuation assembly (500).Sample inspection member (602) comprises an inspection portion (604) orwindow and a gate portion (610). Inspection portion is generallyconfigured as an elongate tube with a lumen (606) extending axiallythrough sample inspection member (602). Sample inspection member (602)of the present example is comprised of a substantially transparentmaterial. Thus, it should be understood that the interior of lumen (606)is visible through inspection portion (604). As will be described ingreater detail below, this transparent configuration permits an operatorto visually inspect tissue samples as they are received and temporarilystored within inspection portion (604) of sample inspection member(602).

As seen in FIG. 7, inspection portion (604) of sample inspection member(602) is equipped with a sensor (605). Sensor (605) can comprises avariety of sensors such as impedance based sensors, light based sensors,doppler effect sensors, and/or etc. Although not shown, it should beunderstood that sensor (605) can be in communication with control moduleor other control features of biopsy device (10) (e.g., circuityincorporated into holster (200)). In the present example, sensor (605)is generally in communication with lumen (606) to detect the presence ofa tissue sample received within sample inspection member (602). In someexamples, sensor (605) can be further configured to detect certaincharacteristics of a tissue sample such as pathogens through impedancebased detection mechanisms. In either case, data from sensor (605) canbe used to change the operational state of biopsy device (10) when thepresence of a tissue sample is detected within sample inspection member(602). For instance, in some examples control circuitry located withinbiopsy device (10), or associated with biopsy device (10), can stop orreduce the flow of vacuum through sample inspection member (602).

Although sensor (605) of the present example is shown as beingassociated with inspection portion (604), it should be understood thatin other examples sensor (605) can be associated with other componentsof biopsy device (10). For instance, as described herein inspectionportion (604) generally rotates at various stages during operation.Thus, incorporating sensor (605) into inspection portion (604) couldpresent some challenges with coupling sensor (605) to control module orother control features of biopsy device (10). Thus, in other examples itmay be desirable to incorporate sensor (605) into certain stationaryelements. In some examples this configuration can be implemented byincorporating sensor (605) into outer housing (102) of probe (100). Insuch a configuration, sensor (605) can be placed in a variety ofpositions relative to inspection portion (604). For instance, in someexamples sensor (605) can be positioned adjacent to inspection portion(604) within sample window (140). In other examples, sensor (605) can bepositioned within outer housing (102) distally of inspection portion(604), but proximally of the interface between outer housing (102) andcannula (113) and needle (110). Of course, various other examplesinvolving the placement of sensor (605) can be used as will beappreciated by those of ordinary skill in the art in view of theteachings herein.

As can also be seen in FIG. 7, inspection portion (604) of sampleinspection member (602) is further quipped with an access window (608).Access window (608) is generally configured to provide access to theinterior of sample inspection member (602). For instance, access window(608) can include a hinged door or other device configured toselectively provide access to the interior of inspection member (602).In some contexts, this may be desirable to permit an operator to removea tissue sample from sample inspection member (602). For instance, someoperators may desire to feel or palpate a tissue sample to obtain sometactile feedback that may be suggestive of the clinical state of thetissue sample. Thus, some operators may desire to remove a tissue samplefrom sample inspection member (602) rather than just visually inspectingthe sample through sample inspection member (602). Although inspectionportion (604) of the present example is shown as including access window(608), it should be understood that in other examples access window(608) can be positioned on other components or can be associated withmultiple components. Alternatively, in other examples access window(608) can be omitted entirely.

As best seen in FIG. 9, gate portion (610) of sample inspection member(602) comprises an outer cylindrical wall (612) and a tapered wall(616). Outer cylindrical wall (612) is generally hollow and comprises adiameter that is generally larger than the diameter of inspectionportion (604). Thus, as lumen (606) of inspection portion (604) extendsinto gate portion (610), the diameter of lumen (606) expands incorrespondence with the expanded diameter of cylindrical wall (612).

The exterior of cylindrical wall (612) comprises threads (614). Threads(614) extend outwardly from the exterior of cylindrical wall (612). Aswill be described in greater detail below, threads (614) are generallyconfigured to engage at least a portion of coupling collar (620) tosecure sample inspection member (602) to coupling collar (620).

Cylindrical wall (612) further comprises at least one locating feature(613) disposed on the proximal end of cylindrical wall (612). Locatingfeature (613) is configured to receive at least a portion of cutterdrive member (502). As will be described in greater detail below,receipt of at least a portion of cutter dive member (502) withinlocating feature (613) locks rotational motion of cutter drive member(502) relative to sample inspection member (602). It should therefore beunderstood that, during use, cutter drive member (502) is configured tocommunicate rotary motion to sample inspection member (602). This inturn communicates rotary motion to cutter (130).

Because of the expanded diameter of cylindrical wall (612), tapered wall(616) is positioned between inspection portion (604) and cylindricalwall (612). Thus, tapered wall (616) forms a generally frustoconicalinner and outer shape to accommodate the transition in diameter frominspection portion (604) to cylindrical wall (612).

The interior of tapered wall (616) defines a plurality of vacuumchannels (618) and an inner flange (619). As will be described ingreater detail below, vacuum channels (618) are generally configured topermit vacuum to pass through gate seal (630) even with a tissue sampleadjacent to gate seal (630). This configuration prevents a pressuredifferential from forming on either side of gate seal (630). Innerflange (619) is configured to receive at least a portion of gate seal(630). As will be described in greater detail below, gate seal (630) isheld in place by compression between inner flange (619) and at least aportion of cutter drive member (502).

As best seen in FIG. 8, coupling collar (620) comprises a ring-shapedbody (622) with a bore (626) extending axially through body (622). Theinterior of bore (626) comprises a plurality of threads (628) and acollar (629). Threads (628) are configured to engage correspondingthreads (614) of sample inspection member (602) to secure sampleinspection member (602) to coupling collar (620). Likewise, and as willbe described in greater detail below, collar (629) is configured toengage at least a portion of cutter drive mechanism (502) to axiallysecure cutter drive mechanism (502) to coupling collar (620).

The exterior of body (622) comprises a plurality of grip features (624)that are recessed into the exterior of body (622). Grip features (624)are generally configured to engage the grip of an operator on couplingcollar (620). As will be described in greater detail below, in somecircumstances it may be desirable to manually rotate coupling collar(620) relative to sample inspection member (602). Thus, grip features(624) enhance the ability of an operator to rotate coupling collar (620)relative to sample inspection member (602). Although grip features (624)are shown as a series of elongate slots, it should be understood that inother examples any other grip feature can be used as will be apparent tothose of ordinary skill in the art in view of the teachings herein.

Gate seal (630) is best seen in FIG. 8. As can be seen, gate seal (630)comprises a generally coin-shaped piece. Gate seal (630) is generallyconfigured to selectively open and close to selectively block a tissuesample from progressing past gate seal (630). Thus, it should beunderstood that gate seal (630) generally functions to hold a giventissue sample within sample inspection member (602) for visualinspection. Gate seal (630) comprises a plurality of vacuum openings(632) and a gate slit (634). Vacuum openings (632) are configured topermit vacuum to pass through gate seal (630) generally unencumbered,even when a tissue sample is positioned adjacently relative to gate seal(630). Although not shown, it should be understood that in some examplesgate seal (630) may also include protrusions or other structuralfeatures to maintain some separation between gate seal (630) and anyadjacent tissue sample.

Gate slit (634) comprises a slit extending through gate seal (630) fromone vacuum opening (632) to another on an opposite side of gate seal(630). Although slit (634) is represented as essentially a line in FIG.8, it should be understood that gate seal (630) is generally separableat gate slit (634) to transition from a closed position (shown in FIG.8) to an open position. To permit opening and closing of gate slit(634), gate seal is generally comprised of a flexible elastomericmaterial such as rubber, silicon, latex, or etc. Although gate seal(630) is generally flexible in nature, it should be understood that gateseal (630) also has some limited rigidity to resiliently bias gate seal(630) toward the closed position shown in FIG. 8.

As described above, cutter drive member (502) includes gate portion(504). Gate portion (504) is best seen in FIG. 10. As will be describedin greater detail below, gate portion (504) of cutter drive member (502)is generally configured to abut inner flange (619) of sample inspectionmember (602) to hold gate seal (630) in position between cutter drivemember (502) and sample inspection member (602). The exterior of gateportion (504) comprises a retaining channel (506), a proximal flange(507), and a locating protrusion (508). Retaining channel (506) isconfigured to receive an o-ring or other sealing feature tosubstantially seal the interface between cutter drive member (502) andsample inspection member (602). Proximal flange (507) is formed by adifferential between the outer diameter of gate portion (504) and driveportion (520) of cutter drive member (502). As will be described ingreater detail below, proximal flange (507) is configured to engagecollar (629) of coupling collar (620) to permit coupling collar (620) tosecure cutter drive member (502) to sample inspection member (602).Similarly, locating protrusion (508) is configured to be received withinlocating feature (613) of sample inspection member (602) to lockrotation of sample inspection member (602) relative to cutter drivemember (502).

The interior of gate portion (504) of cutter drive member (502)comprises a plurality of vacuum channels (510) disposed between aplurality of stop members (512). Both vacuum channels (510) and stopmembers (512) are disposed angularly around lumen (503) of cutter drivemember (502). Vacuum channels (510) are configured to align withcorresponding vacuum channels (618) in gate portion (610) of sampleinspection member (602). As will be described in greater detail below,when gate seal (630) is disposed between gate portion (504) of cutterdrive member (502) and gate portion (610) of sample inspection member(602), respective vacuum channels (510, 618) permit vacuum to flowthrough vacuum openings (632) of gate seal (630). This configurationpermits the flow of vacuum through gate seal (630) even when a tissuesample is positioned adjacent to gate seal (630).

Stop members (512) generally define a common distal face (514) of gateportion (504). As will be described in greater detail below, this commondistal face (514) is configured to prevent gate seal (630) from openingproximally into gate portion (504) of cutter drive member (502).Instead, as will also be described in greater detail below, gate seal(630) is configured to open into gate portion (610) of sample inspectionmember (602).

Stop members (512) also define an inner diameter that generallycorresponds to the outer diameter of transfer tube (560) of cutteractuation assembly (500). As described above, transfer tube (560)generally remains stationary as cutter drive member (502) rotates andtranslates within probe (100). As a consequence of this, transfer tube(560) is configured to pass through the common distal face (514) definedby stop members (512). As will be described in greater detail below,this configuration permits transfer tube (560) to transition gate seal(630) to the open position described above.

FIG. 11 shows cutter drive member (502) coupled to sample inspectionmember (602) by coupling collar (620). As can be seen, coupling collar(620) surrounds at least a portion of the exterior of both gate portions(504, 610) of cutter drive member (502) and sample inspection member(602), respectively. Gate portion (504) of cutter drive member (502) isdisposed within outer cylindrical wall (612) of sample inspection member(602), with locating protrusion (508) of cutter drive member (502)disposed within locating feature (613) of sample inspection member(602).

Collar (629) of coupling collar (620) engages proximal flange (507) ofcutter drive member (502). Correspondingly, threads (614) of sampleinspection member (602) engage threads (628) of coupling collar (620).With threads (614) fully engaged with threads (628), collar (629) ofcoupling collar (620) pulls gate portion (504) of cutter drive member(502) toward gate portion (610) of sample inspection member (602). Thisin turn holds cutter drive member (502) in the position shown in FIG.11.

As described above, gate seal (630) is disposed between inner flange(619) of sample inspection member (602) and common distal face of cutterdrive member (502) when sample inspection member (602) is coupled tocutter drive member (502). In this position, vacuum channels (510) ofcutter drive member (502) and vacuum channels (618) of sample inspectionmember (602) are aligned with vacuum openings (632) of gate seal (630).Thus, it should be understood that in the configuration shown in FIG.11, vacuum is free to pass from lumen (503) of cutter drive member (502)through vacuum openings (632) of gate seal (630), through vacuumchannels (618) of sample inspection member (602) and into lumen (606) ofsample inspection member (602). As described above, this configurationprevents a pressure differential from forming on either side of gateseal (630).

FIGS. 12-18 show an exemplary use of cutter actuation assembly (500) andgate assembly (600) to view a tissue sample through sample window (140)of probe (100). Initially, biopsy device (10) begins with cutter (130)advanced relative to lateral aperture (114) to a distal position suchthat lateral aperture (114) is in a closed configuration as shown inFIG. 12. With lateral aperture (114) in the closed configuration, anoperator can insert needle (110) into the breast of a patient. Insertionof needle (110) can be performed under any one or more of the imageguidance modalities described above such as ultrasound, stereotacticx-ray, or MRI.

As best seen in FIG. 13, when cutter (130) is positioned in the distalposition, cutter actuation assembly (500) is in a corresponding distalposition. When cutter actuation assembly (500) is in the distalposition, cutter drive member (502) is positioned distally relative totranslation member (530), drive gear (540), and transfer tube (560). Aswill be understood, translation member (530), drive gear (540), andtransfer tube (560) all remain in a stationary axial position as cutterdrive member (502) is moved axially to translate cutter (130). Thus, itshould be understood that translation member (530), drive gear (540),and transfer tube (560) will remain in the position shown in FIG. 13 ascutter (130) is translated relative to lateral aperture (114) of needle(110).

Once needle (110) is positioned in the patient by an operator asdesired, the operator can initiate a sampling sequence. In the presentexample, biopsy device (10) is configured to receive an operator inputvia buttons, foot pedals, and/or other features to initiate the samplingsequence. Once the sampling sequence is initiated by an operator,holster (200) will begin to rotate drive gear (540) in a counterclockwise direction as shown in FIG. 15. Keys (546) of drive gear (540)engage longitudinal channels (528) of cutter drive member (502) toinitiate rotation of cutter drive member (502) in the counter-clockwisedirection. As cutter drive member (502) is rotated, threaded portion(522) of cutter drive member (502) engages threads (536) of translationmember (530). Because translation member (530) is rotatably and axiallyfixed within probe (100), translation member (530) is responsive tocounter-clockwise rotation of cutter drive member (502) to provideproximal axial translation of cutter drive member (502) via engagementbetween threaded portion (522) and threads (536) of translation member(530).

Axial translation and rotation of cutter drive member (502) is thentransferred to gate assembly (600) by the coupling between sampleinspection member (602) and cutter drive member (502) via couplingcollar (620). Because cutter (130) is fixedly secured to sampleinspection member (602), rotation and translation transferred to sampleinspection member (602) is also transferred to cutter (130).Accordingly, as cutter drive member (502) is translated and rotated viadrive gear (540) and translation member (530), cutter (130) iscorrespondingly rotated and translated as shown in FIG. 14.

Rotation and translation of cutter (130) via cutter drive member (502)continues until cutter (130) is positioned at a proximal position asshown in FIG. 16. When cutter (130) is in the proximal position, cutterdrive member (502) is correspondingly in a proximal position shown inFIG. 17. When cutter drive member (502) is in the proximal position,cutter drive member (502) is positioned within probe (100) such thattranslation member (530) and drive gear (540) are positioned proximallyrelative to threaded portion (522) of cutter drive member (502). At thisstage, holster (200) ceases rotation of drive gear (540), whichcorrespondingly ceases rotation and translation of cutter drive member(502).

When cutter drive member (502) is in the proximal position shown in FIG.17, gate assembly (600) is in a corresponding open position. Asdescribed above, transfer tube (560) of cutter drive assembly (500)generally remains stationary relative to cutter drive member (502). Asbest seen in FIG. 18, this configuration results in transfer tube (560)extending through gate seal (630) and into lumen (606) of sampleinspection member (602). Because transfer tube (560) extends throughgate seal (630), it should be understood that transfer tube (560)engages gate slit (634) to open gate slit (634) around the exterior oftransfer tube (560). Thus, when cutter drive member (502) is in theproximal position, gate seal (630) is in an open position. In addition,when cutter drive member (502) is in the proximal position, cutter (130)is positioned in the proximal position such that lateral aperture (114)is in an open position. Accordingly, it should be understood that thereis a relationship between gate seal (630) and lateral aperture (114)such that when lateral aperture (114) is in the open position, gate seal(630) is correspondingly in the open position. Likewise, when lateralaperture (114) is in the closed position, gate seal (630) is in acorresponding closed position as shown in FIG. 11.

Once lateral aperture (114) is in the open position, needle (110) isconfigured so that tissue may be prolapsed within lateral aperture(114). To prolapse tissue within lateral aperture (114), vacuum isapplied to cutter (130). In the present example, vacuum is supplied tocutter (130) via tissue sample holder (300). In particular, vacuum iscommunicated to tissue sample holder (300), which is communicatedthrough transfer tube (560), into lumen (606) of sample inspectionmember (602) and into cutter (130). Vacuum then pulls tissue throughlateral aperture (114). In some examples, vacuum is also applied tolumen (120) of cannula (113) via manifold (116) to assist withprolapsing tissue. Of course, vacuum applied to lumen (120) of cannula(113) via manifold (116) is entirely optional and in some examplesvacuum is supplied exclusively through cutter (130).

Once tissue is prolapsed into lateral aperture (114), a tissue samplecan be severed via sharp distal edge (132) of cutter (130) by drivingcutter (130) distally. To drive cutter (130) distally, holster (200)rotates drive gear (540) in a clockwise direction to initiate the samesequence described above with respect to FIGS. 12-17, but in an oppositedirection. As cutter (130) is driven distally by cutter drive member(502), cutter drive member (502) and sample inspection member (602) bothmove distally such that transfer tube (560) disengages gate seal (630).This causes gate seal (630) to return to the closed position shown inFIG. 11.

With a tissue sample severed by distal translation of cutter (130), thesevered tissue sample can next be transported proximally through cutter(130) and into sample inspection member (602). In particular, vacuum isapplied to tissue sample holder (300), which flows into lumen (503) ofcutter drive member (502) via transfer tube (560). Vacuum then flowsthrough cutter drive member (502) and into lumen (606) of sampleinspection member (602) via vacuum channels (510, 618) of cutter drivemember (502) and sample inspection member (602) via vacuum openings(632) of gate seal (630). Finally, vacuum flows from lumen (606) ofsample inspection member (602) and into cutter (130) to transport thesevered tissue sample through cutter (130) and into sample inspectionmember (602).

Once the severed tissue sample is transported into sample inspectionmember (602), the severed tissue sample is prevented from travelingfurther by gate seal (630), which is in the closed position. With thesevered tissue sample positioned within sample inspection member (602),an operator can visually inspect the severed tissue sample with thenaked eye due to the transparency of sample inspection member (602),which is visible through sample window (140) of probe (100). In someinstances, coupling collar (620) may also be used by an operator tomanually rotate sample inspection member (602) to provide a 360° view ofthe severed tissue sample.

Once an operator has completed visual inspection via sample window (140)and sample inspection member (602), the severed tissue sample can betransported to tissue sample holder (300). In particular, the severedtissue sample can be transported to tissue sample holder (300) byreturning cutter (130), sample inspection member (602), and cutter drivemember (502) to the proximal position shown in FIGS. 16-18. As describedabove, this causes sample inspection member (602) and cutter drivemember (502) to translate relative to transport tube (560) to positiontransfer tube (560) through gate slit (634) in gate seal (630) so thatgate seal (630) is in the open position. With gate seal (630) in theopen position, the severed tissue sample can be freely transported intotransfer tube (560), through gate seal (630), and into tissue sampleholder (300). At this stage, cutter (130) is also positioned in theproximal position so that lateral aperture (114) is in the openposition. Accordingly, transporting the severed tissue sample to tissuesample holder (300) also prepares needle (110) for receipt of anothertissue sample holder.

With the severed tissue sample received in tissue sample holder (300) anoperator can next proceed by collecting one or more additional samplesusing the process described above with respect to the severed tissuesample. After collecting any suitable number of tissue samples, anoperator may finalize the procedure by removing needle (110) from thepatient, optionally marking the biopsy site, and sealing the opening inthe patient. Any number of tissue samples collected during the biopsyprocedure can finally be removed from tissue sample holder (300) andsubjected to any desired tissue sample analysis procedure.

III. Biopsy Device with Exemplary Alternative Cutter Actuation Assembly

FIG. 19 shows an exemplary alternative biopsy device (700) that isconfigured and operable just like biopsy device (10) described aboveexcept for the differences explicitly noted herein. Biopsy device (700)comprises a cutter (730), a lateral aperture (714), and a needle (710)extending distally from a probe (701). It should be understood thatcutter (730), lateral aperture (714), needle (710) and probe (701)function substantially similar to cutter (130), lateral aperture (114),needle (110) and probe (100), respectively, described above. Biopsydevice (700) further comprises a holster (770) that is configured andoperable just like holster (200) described above, except as otherwisedescribed below. Holster (770) is configured to couple with probe (701).As will be described in greater detail below, holster (770) comprises amotor gear (780) and a motor (790) enclosed within the housing ofholster (770) and mutually operable to provide power and/or movement tothe components of probe (701). Although not shown, it should beunderstood that a tissue sample holder, similar to tissue sample holder(300) described above, may be coupled to a proximal end of probe (701)to receive tissue samples cut by cutter (730).

As further seen in FIG. 19, probe (701) defines a sample window (740)disposed proximally adjacent to the proximal end of needle (710).Similar to sample window (140) of biopsy device (10) described above,sample window (740) is configured to permit an operator to visualizeindividual tissue samples as they are collected via needle (710) tothereby permit an operator to visually inspect a severed tissue sampleprior to transportation of the severed tissue sample to tissue sampleholder (300).

Biopsy device (700) further comprises an exemplary cutter auctionassembly (800) enclosed within probe (701), as seen in FIG. 20. Cutteractuation assembly (800) comprises a cutter drive member (802), atranslation member (830), and a drive gear (840). Similar to cutterdrive member (502) described above, cutter drive member (802) includes agate portion (804) and a drive portion (820). As will be described ingreater detail below, at least a portion of gate portion (804) isconfigured to couple to at least a portion of a gate assembly (900) tocommunicate rotational and translation motion of cutter drive member(802) to gate assembly (900). As will also be described in greaterdetail below, at least a portion of gate assembly (900) is coupled tocutter (730). Thus, it should be understood that rotation andtranslation of cutter drive member (802) results in correspondingrotation and translation of cutter (730) via the coupling between atleast a portion of gate portion (804) and at least a portion of gateassembly (900).

As best seen in FIG. 21, drive portion (820) of cutter drive member(802) comprises a threaded portion (822) and a pair of longitudinalchannels (828) extending axially along cutter drive member (802) throughthreaded portion (822). Threaded portion (822) is disposed between adistal no-pitch zone (824) and a proximal no-pitch zone (826). As willbe described in greater detail below, threaded portion (822) isgenerally configured to engage with translation member (830) to providetranslation of cutter drive member (802). Similarly, longitudinalchannels (828) are configured to engage drive gear (840) to providerotation of cutter drive member (802). As will be described in greaterdetail below, each no-pitch zone (824, 826) is configured to permitrotation of cutter drive member (802) without translation of cutterdrive member (802).

Translation member (830) comprises a cylindrical body (832) that isgenerally hollow and defines a bore (834) extending axially through body(832). The interior of bore (834) includes a threading (836) that isconfigured to engage threaded portion (822) of cutter drive member(802). As will be described in greater detail below, engagement betweenthreading (836) of translation member (830) and threaded portion (822)of cutter drive member (802) is generally configured to causetranslation of cutter drive member (802) in response to rotation ofcutter drive member (802). In the present example, threading (836) isshown as including only a single turn of threading such that threading(836) may be characterized as only having a single thread. In somecontexts, this configuration may be desirable to more readilymanufacture translation member (830) using injection molding basedmanufacturing operations. However, it should be understood that in otherexamples threading (836) can include multiple threads extending alongthe entire, or a portion of, the axial length of translation member(830).

Translation member (830) further comprises a pair of key features (838)extending upwardly and downwardly from body (832), as best seen in FIG.22. Key features (838) are configured to be received within at least aportion of probe (701) to thereby secure translation member (830)axially and rotatably relative to probe (701). It should be understoodthat key features (838) serves as a mechanical ground for translationmember (830). As will be described in greater detail below, thisconfiguration permits translation member (830) to drive translation ofcutter drive member (802) relative to probe (701) upon rotation ofcutter drive member (802).

Drive gear (840) comprises a cylindrical body (842) that is configuredto fit around the outer diameter of cutter drive member (802).Cylindrical body (842) of drive gear (840) is generally hollow, defininga bore (844) extending axially therethrough. The interior of bore (844)includes a pair of keys (846) extending radially inwardly toward thecenter of bore (844). As will be described in greater detail below, eachkey (846) is configured to engage longitudinal channel (828) of cutterdrive member (802). As best seen in FIG. 25, it should be understoodthat cutter drive member (802) includes another substantially identicallongitudinal channel (828) on the opposite side of cutter drive member(802) such that both keys (846) of drive gear (840) are received withina corresponding longitudinal channel (828). As will be understood, thisconfiguration permits drive gear (840) to rotate cutter drive member(802) in response to rotation of drive gear (840).

Drive gear (840) further comprises a plurality of teeth (848) extendingoutwardly from the exterior of cylindrical body (842). As will bedescribed in greater detail below, teeth (848) are configured to engagecorresponding teeth (786) of a motor gear (780) enclosed within holster(770). Although not shown, it should be understood that at least aportion of drive gear (840) extends through an opening in the outerhousing of probe (701) to permit engagement between drive gear (840) andthe corresponding motor gear (780) of holster (770). As will bedescribed in greater detail below, rotation of drive gear (840) isprovided via the rotation of motor gear (780) of holster (770), whichthereby generally causes rotation of cutter drive member (802). As willbe understood, this rotation of cutter drive member (802) additionallyresults in simultaneous translation of cutter drive member (802) viatranslation member (830).

Motor (790) of holster (770) is configured to drive various componentsof probe (701), particularly the components of cutter actuation assembly(800) described above. Motor (790) is fully enclosed within the housingof holster (770). To communicate the power of motor (790) to probe(701), holster (770) includes motor gear (780) that is operably coupledto motor (790), as seen in FIG. 20. Motor gear (780) comprises acylindrical body (782) that is configured to fit around a rotatableengagement feature (792) that extends proximally from motor (790). Inparticular, cylindrical body (782) of motor gear (780) is generallyhollow, defining a bore (784) extending axially therethrough. Theinterior of bore (784) is sized and shaped to correspond to the profileof rotatable engagement feature (792) of motor (790) such that bore(784) is configured to securely receive rotatable engagement feature(792) therein. Rotatable engagement feature (792) is operable to rotaterelative to motor (790) in response to the activation of motor (790). Inthis instance, with rotatable engagement feature (792) coupled to bore(784) of motor gear (780), motor (790) is operable to cause rotation ofmotor gear (780) through the rotation of rotatable engagement feature(792).

Motor gear (780) further includes a plurality of teeth (786) extendingoutwardly from the exterior of cylindrical body (782), as best seen inFIG. 21. Motor gear (780) is partially enclosed within the housing ofholster (770) and at least partially extending into probe (701) tothereby engage drive gear (840). In particular, as seen in FIG. 20,motor gear (780) is positioned within holster (770) at a longitudinalposition that aligns with the position of drive gear (840) within probe(701) when holster (770) is coupled to probe (701). In this instance, asfurther seen in FIG. 24, teeth (786) of motor gear (780) extend intoprobe (701) and mesh with teeth (848) of drive gear (840) such thatrotation of motor gear (780), powered by motor (790), causescorresponding rotation of drive gear (840). Similar to drive gear (540)described above, rotation of drive gear (840) is operable to drivecutter actuation assembly (800) in probe (701).

Although not shown, it should be understood that cutter actuationassembly (800) may further comprise a transfer tube as similarlydescribed above. In this instance, the transfer tube extends from cutterdrive member (802) to tissue sample holder (300) to providecommunication of tissue samples from cutter drive member (802) to tissuesample holder (300). Similar to transfer tube (560) described above, alumen may be defined within the transfer tube to communicate with acorresponding lumen of cutter drive member (802). Accordingly, it shouldbe understood that the lumen of the transfer tube and the lumen ofcutter drive member (802) together define a continuous path for tissuesamples to flow through cutter drive member (802) and the transfer tubeto tissue sample holder (300). As will be described in greater detailbelow, tissue samples generally flow through cutter (730) into gateassembly (900) and then pass through cutter drive member (802) and thetransfer tube before finally being deposited within tissue sample holder(300). Thus, it should be understood that both the lumen of the transfertube and the lumen of cutter drive member (802) are in fluidcommunication with the interior of cutter (730).

Gate assembly (900) of the present example is configured and operablejust like gate assembly (600) described above, except that gate assembly(900) is disposed distally to cutter drive member (802) rather thancutter drive member (502) of cutter actuation assembly (500). In otherwords, it should be understood that gate assembly (900) functionssubstantially similar to gate assembly (600) described above except forthat gate assembly (900) is configured to receive at least a portion ofcutter drive member (802) of cutter actuation assembly (800) to therebylock rotational motion of cutter drive member (802) relative to gateassembly (900). As seen in FIG. 20, similar to gate assembly (600), gateassembly (900) is generally configured to temporarily cease progressionof tissue samples for visual inspection through same window (740) ofprobe (701). Gate assembly (900) comprises a sample inspection member(902), a coupling collar (920), and a gate seal (not shown) disposedbetween sample inspection member (902) and cutter drive member (802) ofcutter actuation assembly (800). It should be understood that sampleinspection member (902), coupling collar (920), and the gate seal areconfigured and operable similar to sample inspection member (602),coupling collar (620) and gate seal (630), respectively, describedabove. It should therefore be understood that, during use, cutter drivemember (802) is configured to communicate rotary motion to sampleinspection member (902) of gate assembly (900), which in turncommunicates rotary motion to cutter (730).

FIGS. 26-27 show an exemplary use of cutter actuation assembly (800) andgate assembly (900). Initially, biopsy device (700) begins with cutter(730) advanced relative to lateral aperture (714) to a distal positionsuch that lateral aperture (714) is in a closed configuration as shownin FIG. 27B. With lateral aperture (714) in the closed configuration, anoperator can insert needle (710) into the breast of a patient. Insertionof needle (710) can be performed under any one or more of the imageguidance modalities described above such as ultrasound, stereotacticx-ray, or MRI.

As best seen in FIG. 26B, when cutter (730) is positioned in the distalposition, cutter actuation assembly (800) is in a corresponding distalposition. When cutter actuation assembly (800) is in the distalposition, cutter drive member (802) is positioned distally relative totranslation member (830) and drive gear (840). As will be understood,translation member (830) and drive gear (840) all remain in a stationaryaxial position as cutter drive member (802) is moved axially totranslate cutter (730). Thus, it should be understood that translationmember (830) and drive gear (840) will remain in the position shown inFIG. 26B as cutter (730) is translated relative to lateral aperture(714) of needle (710).

Once needle (710) is positioned in the patient by an operator asdesired, the operator can initiate a sampling sequence. In the presentexample, biopsy device (700) is configured to receive an operator inputvia buttons, foot pedals, and/or other features to initiate the samplingsequence. Once the sampling sequence is initiated by an operator, motor(790) is activated to rotate rotatable engagement feature (792) in aclockwise direction. In this instance, with motor gear (780) coupled torotatable engagement feature (792), motor gear (780) similarly rotatesin the clockwise. With teeth (786) of motor gear (780) meshed with teeth(848) of drive gear (840), the rotation of motor gear (780) causes thesimultaneous rotation of drive gear (840) in an opposite,counterclockwise direction, as seen in FIG. 26B. Keys (846) of drivegear (840) engage longitudinal channels (828) of cutter drive member(802) to initiate rotation of cutter drive member (802) in thecounterclockwise direction. As cutter drive member (802) is rotated,threaded portion (822) of cutter drive member (802) engages threading(836) of translation member (830). Because translation member (830) isrotatably and axially fixed within probe (701) through the securement ofkey feature (838) to probe (701), translation member (830) is responsiveto counterclockwise rotation of cutter drive member (802) to provideproximal axial translation of cutter drive member (802) via engagementbetween threaded portion (822) and threading (836) of translation member(830).

Axial translation and rotation of cutter drive member (802) is thentransferred to gate assembly (900) by the coupling between sampleinspection member (902) and cutter drive member (802). Since cutter(730) is fixedly secured to sample inspection member (902), rotation andtranslation transferred to sample inspection member (902) is alsotransferred to cutter (730). Accordingly, as cutter drive member (802)is translated and rotated via drive gear (840) and translation member(830), cutter (730) is correspondingly rotated and translatedproximally, as seen in FIG. 27A.

Rotation and translation of cutter (730) via cutter drive member (802)continues until cutter (730) is positioned at a proximal positionrelative to lateral aperture (714). When cutter (730) is in the proximalposition, cutter drive member (802) is correspondingly in a proximalposition as shown in FIG. 26A. When cutter drive member (802) is in theproximal position, cutter drive member (802) is positioned within probe(701) such that translation member (830) and drive gear (840) arepositioned distally relative to threaded portion (822) of cutter drivemember (802). At this stage, holster (770) ceases rotation of drive gear(840), which correspondingly ceases rotation and translation of cutterdrive member (802).

When cutter drive member (802) is in the proximal position, gateassembly (900) is in a corresponding open position. A transfer tube ofcutter actuation assembly (800) generally remains stationary relative tocutter drive member (802) such that this configuration results in thetransfer tube extending into the lumen of sample inspection member(902). In this instance, it should be understood that the transfer tubeengages a gate slit (not shown) of gate assembly (900) to open the gateslit around the exterior of the transfer tube. Thus, when cutter drivemember (802) is in the proximal position, gate assembly (900) is in anopen position. In addition, when cutter drive member (802) is in theproximal position, cutter (730) is positioned in the proximal positionsuch that lateral aperture (114) is in an open position, as seen in FIG.27A. Accordingly, it should be understood that there is a relationshipbetween gate assembly (900) and lateral aperture (814) such that whenlateral aperture (814) is in the open position, gate assembly (900) iscorrespondingly in the open position. Likewise, when lateral aperture(714) is in the closed position, gate assembly (900) is in acorresponding closed position as shown in FIG. 27B.

Once lateral aperture (714) is in the open position, needle (710) isconfigured so that tissue may be prolapsed within lateral aperture(714). To prolapse tissue within lateral aperture (714), vacuum isapplied to cutter (730) as similarly described above with respect tobiopsy device (10). Once tissue is prolapsed into lateral aperture(714), a tissue sample can be severed via cutter (730) by driving cutter(730) distally. To drive cutter (730) distally, motor (790) rotatesmotor gear (780) counterclockwise as seen in FIG. 26B. In this instance,the meshed engagement of teeth (786) of motor gear (780) and teeth (848)of drive gear (840) causes drive gear (840) to rotate in a clockwisedirection to initiate the same sequence described above but in anopposite direction. As cutter (730) is driven distally by cutter drivemember (802), cutter drive member (802) and sample inspection member(902) both move distally until the tissue sample is severed by cutter(730), as seen in FIG. 27B.

With a tissue sample severed by distal translation of cutter (730), thesevered tissue sample can next be transported proximally through cutter(730) and into sample inspection member (902). In particular, vacuum isapplied to tissue sample holder (300), which flows into and throughcutter drive member (802) and into the lumen (not shown) of sampleinspection member (902). The vacuum flows from sample inspection member(902) into cutter (730) to transport the severed tissue sample throughcutter (730) and into sample inspection member (902).

Once the severed tissue sample is transported into sample inspectionmember (902), the severed tissue sample is prevented from travelingfurther when gate assembly (900) is in the closed position. With thesevered tissue sample positioned within sample inspection member (902),an operator can visually inspect the severed tissue sample with thenaked eye due to the transparency of sample inspection member (902),which is visible through sample window (740) of probe (701). In someinstances, gate assembly (900) may include a coupling collar (not shown)that is configured to selectively rotate sample inspection member (902)through a 360° view to thereby provide an operator with an increasedopportunity to visually inspect the severed tissue sample.

Once an operator has completed visual inspection via sample window (740)and sample inspection member (902), the severed tissue sample can betransported to tissue sample holder (300). In particular, the severedtissue sample can be transported to tissue sample holder (300) byreturning cutter (730), sample inspection member (902), and cutter drivemember (802) to the proximal position shown in FIGS. 26A and 27A. Asdescribed above, this causes sample inspection member (902) and cutterdrive member (802) to translate to position the transfer tube (notshown) of cutter actuation assembly (800) so that gate assembly (900) isin the open position. With gate assembly (900) in the open position, thesevered tissue sample can be freely transported into the transfer tube,through gate assembly (900), and into tissue sample holder (300). Atthis stage, cutter (730) is also positioned in the proximal position sothat lateral aperture (714) is in the open position. Accordingly,transporting the severed tissue sample to tissue sample holder (300)also prepares needle (710) for receipt of another tissue sample holder.

With the severed tissue sample received in tissue sample holder (300) anoperator can next proceed by collecting one or more additional samplesusing the process described above with respect to the severed tissuesample. After collecting any suitable number of tissue samples, anoperator may finalize the procedure by removing needle (710) from thepatient, optionally marking the biopsy site, and sealing the opening inthe patient. Any number of tissue samples collected during the biopsyprocedure can finally be removed from tissue sample holder (300) andsubjected to any desired tissue sample analysis procedure.

IV. Exemplary Combinations

The following examples relate to various non-exhaustive ways in whichthe teachings herein may be combined or applied. It should be understoodthat the following examples are not intended to restrict the coverage ofany claims that may be presented at any time in this application or insubsequent filings of this application. No disclaimer is intended. Thefollowing examples are being provided for nothing more than merelyillustrative purposes. It is contemplated that the various teachingsherein may be arranged and applied in numerous other ways. It is alsocontemplated that some variations may omit certain features referred toin the below examples. Therefore, none of the aspects or featuresreferred to below should be deemed critical unless otherwise explicitlyindicated as such at a later date by the inventors or by a successor ininterest to the inventors. If any claims are presented in thisapplication or in subsequent filings related to this application thatinclude additional features beyond those referred to below, thoseadditional features shall not be presumed to have been added for anyreason relating to patentability.

Example 1

A biopsy device comprising: a body; a needle extending distally from thebody; a cutter longitudinally translatable relative to the needle,wherein the cutter defines a cutter lumen; a tissue sample holdercoupled proximally relative to the body, wherein the cutter lumen of thecutter defines at least a portion of a fluid conduit extending betweenthe cutter and the tissue sample holder; and a sample stopping assembly,wherein the sample stopping assembly is configured to selectively arrestmovement of a tissue sample within the fluid conduit between the cutterand the tissue sample holder.

Example 2

The biopsy device of Example 1, wherein the sample stopping assemblyincludes a sample inspection member and a gate seal.

Example 3

The biopsy device of Example 2, wherein at least a portion of the sampleinspection member is transparent to permit visual inspection of a tissuesample through the sample inspection member.

Example 4

The biopsy device of Examples 2 or 3, wherein the sample inspectionmember and the gate seal are both movable relative to the body totransition the gate seal from a closed position to an open position.

Example 5

The biopsy device of any one or more of Examples 2 through 4, whereinthe gate seal includes a plurality of vacuum openings, wherein thesample inspection member includes a plurality of vacuum channels,wherein the gate seal is positioned relative to the sample inspectionmember such that the vacuum openings of the gate seal are in fluidcommunication with the vacuum channels of the sample inspection member.

Example 6

The biopsy device of Example 5, wherein the vacuum channels of thesample inspection member together with the vacuum openings of the gateseal are configured to promote the flow of fluid through the gate sealwhen a tissue sample is adjacent to the gate seal.

Example 7

The biopsy device of any one or more of Examples 2 through 6, whereinthe gate seal is flexible.

Example 8

The biopsy device of any one or more of Examples 2 through 7, furtherincluding a cutter actuation assembly, wherein the cutter actuationassembly is operable to drive movement of the cutter.

Example 9

The biopsy device of Example 8, wherein the cutter actuation assemblyincludes a cutter drive member, wherein at least a portion of the cutterdrive member is configured to secure the gate seal to the sampleinspection member of the gate assembly.

Example 10

The biopsy device of Example 9, wherein the sample inspection memberincludes a lumen, wherein the cutter drive member includes a lumen,wherein the lumens of the sample inspection member and the cutter drivemember both define a portion of the fluid conduit extending between thecutter and the tissue sample holder.

Example 11

The biopsy device of any one or more of Examples 2 through 10, whereinthe gate seal is configured to transition between an open configurationand closed configuration, wherein the gate seal includes a plurality ofopenings, wherein each opening of the plurality of openings isconfigured to permit communication of fluid through the gate seal whenthe gate seal is in both the open configuration and the closedconfiguration.

Example 12

The biopsy device of any one or more of Examples 1 through 11, whereinthe sample stopping assembly includes a sample inspection member, thesample inspection member including a sensor to detect the presence of atissue sample within the sample inspection member.

Example 13

The biopsy device of Example 12, wherein the sensor is in communicationwith a controller, wherein the controller is configured to reduce vacuumsupplied to the tissue sample holder in response to detection of thepresence of a tissue sample by the sensor.

Example 14

The biopsy device of Example 13, wherein the sensor includes animpedance sensor, wherein the controller is configured to identifycharacteristics of a tissue sample based on signals from the impedancesensor.

Example 15

The biopsy device of Example 12, wherein the sample inspection memberincludes access window, wherein the access window is configured to movebetween an open configuration and a closed configuration to permitremoval of a tissue sample from the sample inspection member.

Example 16

A biopsy device comprising: a body; a needle extending distally from thebody; a cutter longitudinally translatable relative to the needle,wherein the cutter defines a cutter lumen; a tissue sample holdercoupled proximally relative to the body, wherein the cutter lumen of thecutter defines at least a portion of a fluid conduit extending betweenthe cutter and the tissue sample holder; and a cutter actuationassembly, wherein the cutter actuation assembly includes a cutter driverin communication with the cutter, a translation member, and a drivegear, wherein the cutter driver includes a threaded portion having aplurality of threads, wherein the threads are interrupted by a channelextending laterally along the threaded portion, wherein the translationmember is configured to engage the threaded portion to translate thecutter via the cutter driver, wherein the drive gear is configured toengage the channel to rotate the cutter via cutter driver.

Example 17

The biopsy device of Example 16, wherein the translation member includesa body defining a bore, wherein the body further defines threadingextending inwardly within the bore, wherein the threading is configuredto mesh with the threads of the cutter driver.

Example 18

The biopsy device of Example 17, wherein the threading defined by thebody of the translation member includes a single thread defined by asingle turn around the interior of the bore.

Example 19

The biopsy device of Example 17, wherein the threading defined by thebody of the translation member includes a plurality of threads.

Example 20

The biopsy device of any one or more of Examples 16 through 19, whereinthe translation member includes at least one key configured to engage atleast a portion of the body such that the translation member is securedin a fixed position relative to the body.

Example 21

The biopsy device of any one or more of Examples 16 through 20, whereinthe cutter driver is configured to actuate a tissue stopping assembly,wherein the tissue stopping assembly includes a seal, wherein the cutterdriver is configured to move the seal while simultaneously moving thecutter.

Example 22

The biopsy device of Example 21, wherein the cutter driver is configuredto move the seal relative to a transfer tube to transition the sealbetween an open and closed position.

Example 23

The biopsy device of Example 22, wherein the cutter driver defines alumen, wherein the lumen of the cutter driver is configured to receivethe transfer tube such that the transfer tube is slidable within thelumen of the cutter driver.

Example 24

The biopsy device of any one or more of Examples 16 through 23, whereinthe drive gear defines a bore configured to receive the cutter driver,wherein the drive gear includes at least one protrusion, wherein theprotrusion is configured to engage the channel of the cutter driver totransfer rotation of the drive gear to the cutter driver.

Example 25

The biopsy device of Example 24, wherein the cutter driver defines twochannels, wherein the drive gear includes two protrusions correspondingto each channel of the drive gear.

Example 26

A biopsy device comprising: a holster; a probe including a needleextending distally from the probe and a cutter longitudinallytranslatable relative to a lateral aperture defined by the needle,wherein the cutter defines a cutter lumen; a tissue sample holderassociated with the probe; a transfer tube at least partially defining aconduit extending between the cutter and the tissue sample holder; and asample stopping assembly, wherein the sample stopping assembly includesa seal configured to arrest proximal movement of a tissue sampledisposed within the conduit, wherein the seal is movable relative to thetransfer tube to transition between an open configuration and a closedconfiguration.

Example 27

The biopsy device of Example 26, wherein the sample stopping assemblyincludes a sample inspection member, the sample inspection memberincluding a sensor to detect the presence of a tissue sample within thesample inspection member.

Example 28

The biopsy device of Example 27, wherein the sensor is in communicationwith a controller, wherein the controller is configured to reduce vacuumsupplied to the tissue sample holder in response to detection of thepresence of a tissue sample by the sensor.

Example 29

The biopsy device of Example 28, wherein the sensor includes animpedance sensor, wherein the controller is configured to identifycharacteristics of a tissue sample based on signals from the impedancesensor.

Example 30

The biopsy device of any one or more of Examples 27 through 29, whereinthe sample inspection member includes access window, wherein the accesswindow is configured to move between an open configuration and a closedconfiguration to permit removal of a tissue sample from the sampleinspection member.

Example 31

The biopsy device of any one or more of Examples 26 through 30, whereinthe seal of the sample stopping assembly includes a plurality ofopenings, wherein the openings are configured to communicate fluidthrough the seal when the seal is in both the open configuration and theclosed configuration.

Example 32

The biopsy device of Example 31, wherein the seal of the sample stoppingassembly further includes a slot, wherein the transfer tube isconfigured to penetrate the slot to transition the seal to the openconfiguration.

Example 33

The biopsy device of Example 32, wherein the transfer tube is configuredto penetrate the slot of the seal upon movement of the seal relative tothe transfer tube.

Example 34

The biopsy device any one or more of Examples 26 through 33, wherein thecutter is configured to translate between a proximal position and adistal position, wherein the seal is configured to translate with thecutter as the cutter translates between the proximal position and thedistal position.

Example 35

The biopsy device of Example 34, wherein the seal is configured to be inthe open configuration when the cutter is in the proximal position,wherein the seal is configured to be in the closed configuration whenthe cutter is on the distal position.

Example 36

A method for collecting tissue samples using a biopsy device, the methodcomprising: transporting a first tissue sample through a cutter of thebiopsy device to a sample viewing portion of the biopsy device;arresting the first tissue sample in the sample viewing portion;inspecting the first tissue sample while the first tissue sample isdisposed within the viewing portion; transporting the first tissuesample from the sample viewing portion to a tissue sample holder; andtransporting a second tissue sample through the cutter to the sampleviewing portion.

Example 37

The method of Example 36, wherein the step of inspecting the firsttissue sample includes visual inspection of the first tissue sample.

Example 38

The method of any one or more of Examples 36 through 37, furthercomprising removing the first tissue sample from the sample viewingportion to inspect the first tissue sample by palpitation.

Example 39

The method of any one or more of Examples 36 through 38, furthercomprising retracting the cutter proximally relative to a needle of thebiopsy device to open a seal positioned adjacent to the sample viewingportion.

Example 40

The method of Example 39, further comprising advancing the cutterdistally relative to the needle to close the seal.

Example 41

A biopsy device comprising: a body; a needle extending distally from thebody; a cutter longitudinally translatable relative to the needle,wherein the cutter defines a cutter lumen; a tissue sample holdercoupled to the body, wherein the cutter lumen of the cutter defines atleast a portion of a fluid conduit extending between the cutter and thetissue sample holder; and a sample stopping assembly disposed between adistal end of the cutter and the tissue sample holder, wherein thesample stopping assembly is configured to selectively stop a tissuesample being transported within the fluid conduit for inspection and toallow the movement of the stopped tissue sample towards the tissuesample holder.

Example 42

The biopsy device of Example 41, wherein the sample stopping assemblyincludes a transparent sample inspection window to permit visualinspection of the stopped tissue sample.

Example 43

The biopsy device of Example 42, wherein the sample inspection windowand the gate seal are both movable relative to the body to transitionthe gate seal from a closed position that stops the tissue sample to anopen position that allows movement of the stopped tissue sample towardsthe tissue sample holder.

Example 44

The biopsy device of Example 42, wherein the gate seal includes aplurality of vacuum openings, wherein the sample inspection windowincludes a plurality of vacuum channels, wherein the gate seal ispositioned relative to the sample inspection window such that the vacuumopenings of the gate seal are in fluid communication with the vacuumchannels of the sample inspection window.

Example 45

The biopsy device of Example 44, wherein the vacuum channels of thesample inspection window together with the vacuum openings of the gateseal are configured to promote the flow of fluid through the gate sealwhen a tissue sample is adjacent to the gate seal.

Example 46

The biopsy device of any one or more of Examples 42 through 45, whereinthe gate seal is flexible.

Example 47

The biopsy device of any one or more of Examples 42 through 46, furtherincluding a cutter actuation assembly, wherein the cutter actuationassembly is operable to drive movement of the cutter.

Example 48

The biopsy device of Example 47, wherein the cutter actuation assemblyincludes a cutter drive member, wherein at least a portion of the cutterdrive member is configured to secure the gate seal to the sampleinspection window of the gate assembly.

Example 49

The biopsy device of Example 48, wherein the sample inspection windowincludes a lumen, wherein the cutter drive member includes a lumen,wherein the lumens of the sample inspection member and the cutter drivemember both define a portion of the fluid conduit extending between thecutter and the tissue sample holder.

Example 50

The biopsy device of any one or more of Examples 42 through 49, whereinthe gate seal is configured to transition between an open configurationand closed configuration, wherein the gate seal includes a plurality ofopenings, wherein each opening of the plurality of openings isconfigured to permit communication of fluid through the gate seal whenthe gate seal is in both the open configuration and the closedconfiguration.

Example 51

The biopsy device of any one or more of Examples 42 through 50, whereinthe biopsy device further includes a transport tube extending distallyfrom the tissue sample holder, wherein the transport tube defines atleast a portion of the fluid conduit, wherein the transport tube isconfigured to transition the gate seal from a closed position that stopsthe tissue sample to an open position that allows movement of thestopped tissue sample towards the tissue sample holder upon movement ofthe gate seal relative to the transport tube.

Example 52

The biopsy device of Example 41, wherein the sample stopping assembly isassociated with a sensor, wherein the sensor is configured to detect thepresence of the stopped tissue sample within at least a portion of thesample stopping assembly.

Example 53

The biopsy device of Example 52, wherein the sensor is in communicationwith a controller, wherein the controller is configured to reduce vacuumsupplied to the tissue sample holder in response to detection of thepresence of a tissue sample by the sensor.

Example 54

The biopsy device of any one or more of Examples 52 through 53, whereinthe sensor is integrated into at least a portion of the sample stoppingassembly.

Example 55

The biopsy device of any one or more of Examples 52 through 53, whereinthe sensor is integrated into the body.

V. CONCLUSION

It should be appreciated that any patent, publication, or otherdisclosure material, in whole or in part, that is said to beincorporated by reference herein is incorporated herein only to theextent that the incorporated material does not conflict with existingdefinitions, statements, or other disclosure material set forth in thisdisclosure. As such, and to the extent necessary, the disclosure asexplicitly set forth herein supersedes any conflicting materialincorporated herein by reference. Any material, or portion thereof, thatis said to be incorporated by reference herein, but which conflicts withexisting definitions, statements, or other disclosure material set forthherein will only be incorporated to the extent that no conflict arisesbetween that incorporated material and the existing disclosure material.

By way of example only, embodiments described herein may be processedbefore surgery. First, a new or used instrument may be obtained and ifnecessary cleaned. The instrument may then be sterilized. In onesterilization technique, the instrument is placed in a closed and sealedcontainer, such as a plastic or TYVEK bag. The container and instrumentmay then be placed in a field of radiation that can penetrate thecontainer, such as gamma radiation, x-rays, or high-energy electrons.The radiation may kill bacteria on the instrument and in the container.The sterilized instrument may then be stored in the sterile container.The sealed container may keep the instrument sterile until it is openedin a medical facility. A device may also be sterilized using any othertechnique known in the art, including but not limited to beta or gammaradiation, ethylene oxide, or steam.

Embodiments of the devices disclosed herein can be reconditioned forreuse after at least one use. Reconditioning may include any combinationof the steps of disassembly of the device, followed by cleaning orreplacement of particular pieces, and subsequent reassembly. Inparticular, embodiments of the devices disclosed herein may bedisassembled, and any number of the particular pieces or parts of thedevices may be selectively replaced or removed in any combination. Uponcleaning and/or replacement of particular parts, embodiments of thedevices may be reassembled for subsequent use either at a reconditioningfacility, or by a surgical team immediately prior to a surgicalprocedure. Those skilled in the art will appreciate that reconditioningof a device may utilize a variety of techniques for disassembly,cleaning/replacement, and reassembly. Use of such techniques, and theresulting reconditioned device, are all within the scope of the presentapplication.

Having shown and described various embodiments of the present invention,further adaptations of the methods and systems described herein may beaccomplished by appropriate modifications by one of ordinary skill inthe art without departing from the scope of the present invention.Several of such potential modifications have been mentioned, and otherswill be apparent to those skilled in the art. For instance, theexamples, embodiments, geometrics, materials, dimensions, ratios, steps,and the like discussed above are illustrative and are not required.Accordingly, the scope of the present invention should be considered interms of the following claims and is understood not to be limited to thedetails of structure and operation shown and described in thespecification and drawings.

I/we claim:
 1. A biopsy device comprising: (a) a body; (b) a needleextending distally from the body; (c) a cutter longitudinallytranslatable relative to the needle, wherein the cutter defines a cutterlumen; (d) a tissue sample holder coupled to the body, wherein thecutter lumen of the cutter defines at least a portion of a fluid conduitextending between the cutter and the tissue sample holder; and (e) asample stopping assembly disposed between a distal end of the cutter andthe tissue sample holder, wherein the sample stopping assembly isconfigured to selectively stop a tissue sample being transported withinthe fluid conduit for inspection and to allow the movement of thestopped tissue sample towards the tissue sample holder.
 2. The biopsydevice of claim 1, wherein the sample stopping assembly includes atransparent sample inspection window to permit visual inspection of thestopped tissue sample.
 3. The biopsy device of claim 2, wherein thesample inspection window and the gate seal are both movable relative tothe body to transition the gate seal from a closed position that stopsthe tissue sample to an open position that allows movement of thestopped tissue sample towards the tissue sample holder.
 4. The biopsydevice of claim 2, wherein the gate seal includes a plurality of vacuumopenings, wherein the sample inspection window includes a plurality ofvacuum channels, wherein the gate seal is positioned relative to thesample inspection window such that the vacuum openings of the gate sealare in fluid communication with the vacuum channels of the sampleinspection window.
 5. The biopsy device of claim 4, wherein the vacuumchannels of the sample inspection window together with the vacuumopenings of the gate seal are configured to promote the flow of fluidthrough the gate seal when a tissue sample is adjacent to the gate seal.6. The biopsy device of claim 2, wherein the gate seal is flexible. 7.The biopsy device of claim 2, further including a cutter actuationassembly, wherein the cutter actuation assembly is operable to drivemovement of the cutter.
 8. The biopsy device of claim 7, wherein thecutter actuation assembly includes a cutter drive member, wherein atleast a portion of the cutter drive member is configured to secure thegate seal to the sample inspection window of the gate assembly.
 9. Thebiopsy device of claim 8, wherein the sample inspection window includesa lumen, wherein the cutter drive member includes a lumen, wherein thelumens of the sample inspection member and the cutter drive member bothdefine a portion of the fluid conduit extending between the cutter andthe tissue sample holder.
 10. The biopsy device of claim 2, wherein thegate seal is configured to transition between an open configuration andclosed configuration, wherein the gate seal includes a plurality ofopenings, wherein each opening of the plurality of openings isconfigured to permit communication of fluid through the gate seal whenthe gate seal is in both the open configuration and the closedconfiguration.
 11. The biopsy device of claim 2, wherein the biopsydevice further includes a transport tube extending distally from thetissue sample holder, wherein the transport tube defines at least aportion of the fluid conduit, wherein the transport tube is configuredto transition the gate seal from a closed position that stops the tissuesample to an open position that allows movement of the stopped tissuesample towards the tissue sample holder upon movement of the gate sealrelative to the transport tube.
 12. The biopsy device of claim 1,wherein the sample stopping assembly includes a sample inspectionmember, the sample inspection member including a sensor to detect thepresence of a tissue sample within the sample inspection member.
 13. Thebiopsy device of claim 12, wherein the sensor is in communication with acontroller, wherein the controller is configured to reduce vacuumsupplied to the tissue sample holder in response to detection of thepresence of a tissue sample by the sensor.
 14. The biopsy device ofclaim 13, wherein the sensor includes an impedance sensor, wherein thecontroller is configured to identify characteristics of a tissue samplebased on signals from the impedance sensor.
 15. The biopsy device ofclaim 12, wherein the sample inspection member includes access window,wherein the access window is configured to move between an openconfiguration and a closed configuration to permit removal of a tissuesample from the sample inspection member.
 16. A biopsy device, thebiopsy device comprising: (a) a body; (b) a needle extending distallyfrom the body; (c) a cutter longitudinally translatable relative to theneedle, wherein the cutter defines a cutter lumen; (d) a tissue sampleholder coupled proximally relative to the body, wherein the cutter lumenof the cutter defines at least a portion of a fluid conduit extendingbetween the cutter and the tissue sample holder; and (e) a cutteractuation assembly, wherein the cutter actuation assembly includes acutter driver in communication with the cutter, a translation member,and a drive gear, wherein the cutter driver includes a threaded portionhaving a plurality of threads, wherein the threads are interrupted by achannel extending laterally along the threaded portion, wherein thetranslation member is configured to engage the threaded portion totranslate the cutter via the cutter driver, wherein the drive gear isconfigured to engage the channel to rotate the cutter via cutter driver.17. The biopsy device of claim 16, wherein the translation memberincludes a body defining a bore, wherein the body further definesthreading extending inwardly within the bore, wherein the threading isconfigured to mesh with the threads of the cutter driver.
 18. The biopsydevice of claim 17, wherein the threading defined by the body of thetranslation member includes a single thread defined by a single turnaround the interior of the bore.
 19. The biopsy device of claim 16,wherein the cutter driver is configured to actuate a tissue stoppingassembly, wherein the tissue stopping assembly includes a seal, whereinthe cutter driver is configured to move the seal while simultaneouslymoving the cutter.
 20. A method for collecting tissue samples using abiopsy device, the method comprising: (a) transporting a first tissuesample through a cutter of the biopsy device to a sample viewing portionof the biopsy device; (b) arresting the first tissue sample in thesample viewing portion; (c) inspecting the first tissue sample while thefirst tissue sample is disposed within the viewing portion; (d)transporting the first tissue sample from the sample viewing portion toa tissue sample holder; and (e) transporting a second tissue samplethrough the cutter to the sample viewing portion.